/Engine/Source/Editor/UnrealEd/Public/WorldPartition/WorldPartitionMiniMapBuilder.h
Overridable method for derived classes to perform operations when world builder process starts. This is called before loading data (e.g. data layers, editor cells) and before calling `RunInternal_.
virtual bool PreRun ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [FPackageSourceControlHelper](API\Editor\UnrealEd\FPackageSourceControlHelper) & PackageHelper )